CA1191012A - Insulated roof structure system and method of erecting same - Google Patents

Insulated roof structure system and method of erecting same

Info

Publication number
CA1191012A
CA1191012A CA000416798A CA416798A CA1191012A CA 1191012 A CA1191012 A CA 1191012A CA 000416798 A CA000416798 A CA 000416798A CA 416798 A CA416798 A CA 416798A CA 1191012 A CA1191012 A CA 1191012A
Authority
CA
Canada
Prior art keywords
purlins
blanket
web
purlin
clip
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA000416798A
Other languages
French (fr)
Inventor
Hans G. Berger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BEHLEN Manufacturing Co
Original Assignee
BEHLEN Manufacturing Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US06/326,692 priority Critical patent/US4446665A/en
Application filed by BEHLEN Manufacturing Co filed Critical BEHLEN Manufacturing Co
Application granted granted Critical
Publication of CA1191012A publication Critical patent/CA1191012A/en
Priority to US326,692 priority
Application status is Expired legal-status Critical

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04DROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage; Sky-lights
    • E04D13/16Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure
    • E04D13/1606Insulation of the roof covering characterised by its integration in the roof structure
    • E04D13/1612Insulation of the roof covering characterised by its integration in the roof structure the roof structure comprising a supporting framework of roof purlins or rafters
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04DROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage; Sky-lights
    • E04D13/16Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure
    • E04D13/1606Insulation of the roof covering characterised by its integration in the roof structure
    • E04D13/1612Insulation of the roof covering characterised by its integration in the roof structure the roof structure comprising a supporting framework of roof purlins or rafters
    • E04D13/1618Insulation of the roof covering characterised by its integration in the roof structure the roof structure comprising a supporting framework of roof purlins or rafters with means for fixing the insulating material between the roof covering and the upper surface of the roof purlins or rafters
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04DROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D3/00Roof covering by making use of flat or curved slabs or stiff sheets
    • E04D3/36Connecting; Fastening
    • E04D3/3601Connecting; Fastening of roof covering supported by the roof structure with interposition of a insulating layer
    • E04D3/3602The fastening means comprising elongated profiles installed in or on the insulation layer

Abstract

INSULATED ROOF STRUCTURE SYSTEM
AND METHOD OF ERECTING SAME

ABSTRACT OF THE DISCLOSURE

A method and a clip system for installing insula-tion on the purlins of a sheet metal roof construction is disclosed. The clip is of one-piece resilient construction and of a shape to be snapped over a portion of an insulating blanket and the upper portion of a roof purlin to snugly clamp the engaged portion of the blanket against the top and upper opposite sides of the purlin. The blanket is thus contained by the clips below the tops of the purlins so that a pocket suitable for the reception of an unfaced batt of insulating material is formed in the top of the blanket be-tween adjacent purlins. The top of the clip may be provided with suitable means, such as adhesive or projecting barbs, for positively retaining a board of insulating material such as styrofoam, above each purlin and retaining the board against movement during the assembly of overlying roof panels.

Description

io~

i ¦~ In purlin supp~rted sheet metal roDf s~stems,

2 such as typical standing seam roof constructions, the all

3 metal construction combined with the relatively thin sheet

4 metal roof panels require the inclusion in such roofs of a substantial -thickness of heat insulating material. It is ~ known in constructions of this type to install blankets of 7 ¦ heat insulating material as the roof is being constructed, 8 ¦ normally by laying the blanket of insulating material over 9 1 the purlins and securing the blanket in place by installing the roof panel mounting clips on top of the blanke-t, the 11 self tapping screws securiny the mounting clips -to the pur- ¦
12 lins passing through the insulating blanket, (see, for 13 example, Canadian patent No. 1,160,419, issued January 17, 14 1984 and assigned -to the assignee of the present applica-tion~.
1~
17 As pointed out in the aforementioned Canadian 18 patent No. 1,160,419, the clamping of the insulating 19 blanket in place by the mounting of the roof panel mount-20 ¦ ing clips necessarily compresses the b'Lanket along the top 21 ¦ of the purlin. Because the blanket must be compressed in 22 ~ this particular type of installation, the thicker the blanket 23 ¦ of insulating material employed, the more difficult it becomes 24 to install by this method. As a practical matter, blankets of thickness over six inches pose substantial installation 26 problems where -the blanket is to be clamped between the purlin 27 and the roof panel mounting clips. As is recognized in U. S.
28 patent 4,05g,949, "practical considerations limit roof in-29 sulation configurations to panels of three to four inches 1 ~ in thickness" for an installation of this type. In patent 2 ¦ ~,05~,9~g, this problem is solved by employiny two layers ~ ¦ of relatively thin blankets instead of a single layer thick 4 ¦ blanket, however, the double layer blanket installation of

5 ¦ U.S. patent ~,058,949 requires the mounting of a spacer ¦ upon the purlins between the two layers to clamp the lower 7 ¦ layer to the purlin and to provide a support surface for 8 ¦ the upper layer which is held in position by the mounting 9 clip. Other approaches are disclosed in U.S. patents 0 ¦ 3,513,614; 4,117,641; 3,511,011; and 4,075,~06.

12 ¦ The present invention is especially directed -to a 13 ¦ resilient clip system which resiliently clamps a rela-~ively 1~ ¦ thi.n blanket of insula-ting material to the purlins in a man-ner such that the blanket is formed with a depressed pocket 16 ¦ between adjacent purlins which is suitable for receiving 17 ¦ unfaced batts of insulation material which may be simply 1~ ¦ placed in position as the roof panels are being installed.

20 ¦ The upper portion of the typical roof purli.n em-21 ¦ ployed in standing seam roof constructions has a transverse 22 ¦ cross section in the general shape of an inverted L~ The 23 clip utili~ed with the system of the present invention is 24 formed from a single piece of resiliently bendable plastic 25 ¦ or sheet metal material to enclose the inverted L-shaped 26 ¦ upper portion of the purlin. It compresses a blanket of 27 ¦ insulating materi.al against the top of the purlin and ~8 ~ against its two opposite sides for approxima-tely the upper 2~ ¦ half of the height of the purlin. The clips are installed 1 along each purlin at approximately twelve inch intervals so ¦ that the blanket, in its extent between adjacent purlins, is 3 ¦ depressed about five inches below the top of the purlins, 4 ¦ thus forming a pocket between adjacent purlins into which 5 ¦ an unfaced batt of insulating material can be placed to give ~ ¦ a substantially increased total thickness of insulation be-7 ¦ tween the purlins.

g ¦ Because the blanket OL insulating material is com-1~ ¦ pressed where it is engaged with the purlin, and the batts 11 ¦ of material placed in the blanket pockets formed by the clips j 12 ¦ of the present invention do not extend over the purlins, a 1~ ¦ block-like board of a relatively rigid insulating material, 14 ¦ such as styrofoam, may be placed over each purlin between adjacent panel mounting clips - see U. S. patent 4,058,949 1~ and the aforementioneZ Canadian patent No. 1,160,419. The 17 ¦ clips of the present invention may be provided with suit-18 ¦ able means upon their upwardly facing top web, such means 19 ¦ ta]cing the form of adhesive or upwardly projecting nipples, 20 ¦ to anchor the styrofoam boards in place while the roof panels 21 ~ are being installed. As pointed ou-t in the aforementioned 22 ¦ Canadian patent 1,160,419, the boards are ultimately 23 ¦ c]amped in position by the installation of the roof panels, 24 ¦ however, the boards tend to become displaced while the roof ~5 ¦ panel is being positioned and thus some means for anchoring ~6 them during this positioning of the panel is desirable.
~7 1 28 ¦ Other objects and features of the invention will 2~ ¦ become apparent by reference to the following specification 30 ¦ and to the drawings.

LO~LZ

1 Flgure 1 ls a perspectlve view showing an lnstal-¦ lation embodying the clip system of the present invention;
3 ¦ and 4 ~ Figure 2 is an enlarged detail cross sectional view

6 ¦ showing a clip installed upon a purlin.
~ ¦ Referring first of all to Figure 1, there is shown

7 ~ a portion of a standing seam roof construction embodying the

8 ¦ present invention. For purposes of clarity, many conventional ~ ¦ elements of the roof construction are not shown. However, ¦ the construction illustrated shows a pair of spaced, parallel 11 ¦ purlins generally designated 10, over which a blanket of 12 ¦ standard roll-type insulating material designated generally 13 ¦ 12 has been laid. At spaced positions along each purlin, 1~ ¦ purlin-embracing clips 22, to be presently described in 15 ¦ detail, are deformed to mount on the purlins and clamp the 1~ ~ blanket strips 12 thereto. Also roof panel mounting clips 17 ¦ designated generally 1~ are mounted on top of certain of the 18 clips 22 and secured to the underlying purlin 10 by self 19 tapping sheet metal screws 16 which pass through openings in the clips 22 and through the blanket 12, and are threaded 21 into the horizontal upper web of the purlin. The mounting 22 clips 1~ are employed to mount the standing seam roof panels 23 designated generally 18. For further details of -the clips 24 14 and roof panels 18, reference may be had to a commonly 25 ¦ owned Canadian patent No. 1,158,830, issued December 20, 26 1983. Because the insula-ting blanket 12 is compressed 27 against the top of the purlin by the moun-ting clips 14 and 28 22, board-like blocks of a relatively rigid thermal insu-2~
~30 1 lating material, such as styrofoam, designated generally 20, 2 are placed in overlying relationship with the compressed 3 blanke-t above the top of each purlin 10 between acljacent 4 moun-ting clips 14.

e-tails of the construction of clips 22 and the 7 relationship between the clips, purlins and insulati.ng 8 ¦ blanket 12 are best seen in Figure 2. Referring to Figure

9 ¦ 2, it is seen that the purlin 10 is of generally Z-shaped 1~ configuration, conventional in this art, which includes a 11 vertical web 24 having an integral horizontal top web 26 lZ ¦ projecting to one side of web 24 at its upper edge, the 13 ¦ distal end of the horizontal web 26 being bent downwardly 14 ¦ and outwardly to form a stiffening flange or lip 2~. A
16 ¦ similar horizontal web and lip designated generally 30 is 1~ ¦ formed at the lower end of vertical web 24 to provide a 17 ¦ surface for mounting the purlin upon a roof truss, not shown.
1~3 1 19 ¦ The clip 22 is formed and dimensioned to substan-20 ¦ tially enclose, or surround, approximately the upper half 21 ~ portion of the purlin with a clearance sufficien-t to accom-22 ¦ modate a compressed portion of the insulating blanket 12 23 ¦ b~tween the clip and purlin. The clip includes a top web ~4 ¦ section 32 which is integrally joined at its right-hand end 2~ I as viewed in Figure 2 to a qeneral.ly vertical si~e web 34 26 ~ whose lower edge i5 reversely bent convexly downwardly into 27 ¦ a generally J-shaped configuration as at 36 to form a smoothly 2a rounded or surfaced lower edge at the bottom of web section 2~ 34.

l l 3ii9101;~

1 At the opposite or left-hand end, as viewed in 2 Figure 2, the top web section 32 is integrally joined to a 3 generally downwardly and inwardly inclined retaining web section designated generally 38. The upper end of retaining 5 web 38 is formed into a generally U-shaped section 40 which generally envelopes the purlin lip 28. The upper terminus 7 40a of section 40 at about the level of the terminal edge 8 of flange 38 so the blanket 12 is forced to take a reverse 9 direction and hook around the lower edge of ilange 38. At

10 the lower end of retaining web section 38, the section is

11 ¦ bent into a short vertical section terminating a~ a lower 1:~ edge of generally J-shaped configuration 42 forming a smoothly 13 rounded or surfaced lower edqe on the retaining web section.

Both vertical web section 34 and retaining web 1~ section 38 are provided with an integral bracing or rein-17 forcing web as at 34a and 38a to strengthen these webs and 18 to apply a firm grip between the upper and lower ends of 19 the web which tends to prevent separation of the ends 36 20 and 42.

22 The top of web 32 may be coated with adhesive as 23 at A or alternatively formed with sharp projections to anchor ~4 foam blocks 20 in position.
:~5 The clip 22 is preferably constructed of a suit-27 able thermoplastic material such as polyvinylchloride which 28 ~ allows the various web sections of the clip to be bent re-2~ siliently by an amount sufficien-t to enable the clip to be ~L~3~

1 snapped into the posi-tion shown in Figure 2 without exceed-Z ing the elastic limit of the material. As is apparent from 3 Figure 2, installation of the clip clamps the insulating blanket 12 as shown to the top and to the opposite sides of -the upper portion of the purlin which has the effect of 6 depressiny the upper surface of blanket 12 a substantial 7 distance below the top of the purlins 22. As best seen in 8 Figure 1, -this forms pockets P in blanket 12 between adja-9 cent purlins 22 which are suitable for the recep-tion of ba-tts 1~ of insulating material, typically unfaced fiberglass ~3.

12 ~Jhile dimensions of different installations may

13 vary, typical dimensions of the installa-tion shown in Figures

14 1 and 2 are as follows. The total vertical height of purlin 10 is ten inches, the depth of the pocket P formed by the 1~ depression of blanket 12 belo~7 the purlin tops by clips 22 17 may be approxima-tely five inches, the blanke-t 12 is approxi-18 mately three inches in thickness, while the fiberglass batt 19 is of six inch thickness, the styrofoam board 20 being approxi mately one inch thick.

22 With an installation of -the foregoing dimensions, 23 it is thus seen that effectively a nine inch thickness of ~4 insulation is achie-ved by the employment of the clip 22 to 25 ~ form pockets in a three inch blanket into which unfaced 26 I fiberglass batts of six inch thickness may be simply placed 27 I during the assembly of the roof.

2~ While one embodiment of -the invention has been 30 ~ ~ scribed in detail, lt wi:Ll b apparent to thDse skilled ~ .01~

1 in the art that -the disclosed embodiment may be modified.

2 Therefore, the foregoing description is to be considered 3 exemplary, rather than limiting, and the -true scope of 4 the invention is that defined in the following claims.

~30 ll

Claims (12)

THE EMBODIMENTS OF THE INVENTION IN WHICH AN EXCLUSIVE
PROPERLY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. In a standing seam roof construction including a plurality of elongate parallel purlins, each having a vertical web and a horizontal top web projecting from one side of said vertical web at the upper edge thereof, stand-ing seam roof panels supported by the purlins in overly-ing relationship therewith, a continuous blanket of de-formable, squeezable insulating material spanning a plural-ity of said purlins and overlying and supported by said purlins; resilient generally inversely U-shaped clips for securing said blanket in overlying relation to said purlins, each clip comprising a horizontal top web section integrally joined at one end to a vertical web section and integrally joined at its other end to a downwardly directed web portion connected with a web loop portion having an upwardly directed web section and then a down-wardly directed web section to resiliently enclose the upper portion of the purlin, the web sections of each clip being dimensioned relative to the webs of a purlin such that a blanket of said insulating material overlying a purlin is compressed against the top web of the purlin, and turned reversely by said loop portion, while being pressed against the vertical web of said purlin by the respective top and vertical web sections of said clip to clamp said blanket in position with the top and vertical web sections respectively of the clip opposed to and embracing the top and vertical webs of said purlin; said clips being installed along each of said purlins whereby the blanket in its ex-tent between adjacent purlins is deformed below the tops of the purlins to form pockets between the purlins suit-able for the reception of additional insulating material.
2. The invention defined in claim 1 wherein said clip further comprises integral downwardly convex edges of generally J-shaped cross section at the lower ends of said vertical and said downwardly directed sections.
3. The invention defined in either of claims 1 and 2 wherein the lower ends of said vertical web section and said downwardly directed web section are at substan-tially the same distance below said top web section and said distance is approximately equal to one-half of the height of the vertical web of said purlin.
4. The invention defined in claim 1 further com-prising upwardly projecting means on said top web section of said clip for anchoring a board-like block of insulat-ing material against sliding movement relative to said top web section.
5. The invention defined in claim 1 wherein said top web of said purlin is formed with an outwardly and downwardly inclined lip along its outer edge, and said loop portion of said clip generally surrounds said lip.
6. In a standing seam roof construction including a plurality of elongate parallel purlins, each having a vertical web and an integral horizontal top web projecting from one side of said vertical web along the upper edge thereof, standing seam roof panels supported by the purlins in overlying relationship therewith; a blanket of deform-able squeezable insulating material overlying and supported by said purlins and means for anchoring said blanket to said purlins; the improvement wherein said means comprises a plurality of installation clips, each of said clips com-prising a member of resiliently bendable material having a top web section integrally joined at one end to a verti-cal web section and integrally joined at its other end to an inwardly and downwardly inclined retaining web section adapted to resiliently enclose the top web and upper por-tion of the vertical web of one of said purlins to clamp a portion of said blanket between the clip and the purlin with the blanket compressed against the opposite sides and top of the purlin, said clips being installed at spaced locations along each of said purlins whereby the blanket in its extent between adjacent purlins is depressed by said clips below the tops of the purlins to form a pocket suitable for the reception of a batt of insulating material.
7. The invention defined in claim 6 further com-prising a reversely, upwardly bent portion at the lower end of each of the vertical and retaining web sections of said clip defining a smoothly rounded lower edge on each of the last-mentioned web sections.
8. The invention defined in either of claims 6 or 7 further comprising means on the upper surface of the top web section of said clip for anchoring a block of insulat-ing material to the top of said clip.
9. The invention defined in either of claims 6 or 7 wherein the height of said clip is approximately one-half the height of the vertical web of a purlin to which the clip is to be applied.
10. In a system wherein a relatively thick layer of insulating material is applied beneath a sheet metal roof construction; a plurality of spaced parallel purlins with angle-shaped upper ends; sheet metal roof paneling supported by said purlins at a spaced distance above the purlins; a longitudinally extending blanket of roll type insulating material laid crosswisely over a plurality of said purlins, a plurality of clips in overlying relationship to the blanket mounted at spaced locations along each purlin to anchor the blanket thereto and form a depressed pocket in said blanket in its extent between adjacent purlins, and a layer of additional insulating material disposed to fill each pocket; said clips being formed of resilient material to conform generally to the shape of the upper portions of said purlins and being deformed to embrace said purlins so that they clamp the blanket in position and are themselves held in fixed position on the purlins.
11. The system of claim 10 wherein foam boards are secured to the purlins in superjacent relation to the blanket portions overlying the purlins.
12. In a standing seam roof construction including a plurality of elongate parallel purlins, each having a vertical web and a horizontal top web projecting from one side of said vertical web at the upper edge thereof, roof panels supported by said purlins,and a continuous blanket of deformable, squeezable insulating material extending crosswisely to said purlins and overlying and supported by a first purlin to extend beyond the purlin to similarly overlie adjacent purlins; generally inversely U-shaped clips for securing said blanket in overlying relation to said purlins, said clips each having a horizontal top web section integrally joined to downwardly directed web sections at opposite ends, the web sections of each clip being dimensioned relative to the webs of a purlin such that a blanket of said insulating material overlying said purlin is clamped against the top web of the purlin and held adjacent the two opposite sides of the vertical web of said purlin by the respective web sections of each clip to form a recessed channel in said blanket between purlins, and an additional overlying layer of insulating material disposed in said channel.
CA000416798A 1981-12-02 1982-12-01 Insulated roof structure system and method of erecting same Expired CA1191012A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US06/326,692 US4446665A (en) 1981-12-02 1981-12-02 Insulated roof structure system and method of erecting same
US326,692 1994-10-20

Publications (1)

Publication Number Publication Date
CA1191012A true CA1191012A (en) 1985-07-30

Family

ID=23273264

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000416798A Expired CA1191012A (en) 1981-12-02 1982-12-01 Insulated roof structure system and method of erecting same

Country Status (2)

Country Link
US (1) US4446665A (en)
CA (1) CA1191012A (en)

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Also Published As

Publication number Publication date
CA1191012A1 (en)
US4446665A (en) 1984-05-08

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